7. There are three main types of rocks. Which of the following is not one of the three?
igneous, which are formed by volcanoes when the volcano erupts
sedimentary, which are formed in layers over a period of time, often under a body of
water.
geomolten, which are volcanic in origin
metamorphic rocks, which are created by heat and pressure.

Select the correct answer. tay-sachs disease is caused by a mutation in the hexa gene located on chromosome 15. tay-sachs follows an autosomal recessive pattern of inheritance. with the of the diagram, identify which of the offspring will be an unaffected carrier. a diagram showing the genes of parents who are carriers of tay-sachs disease a. a, b, and c b. b and c c. a and d d. a e. d

Match the description of each organism to the appropriate category

Which level of taxonomy has the fewest organisms?